There are plenty of limas around right now so I had to try sopa de lima.
For the record, limas (sweet limes) are a citrus fruit that's about the size of a large US lime (not key lime size) and they have a knob at one end that makes them distinctive. They taste nothing like a lime and limes aren't a subsitute, but they'd make a different soup that would be good too.
This is really easy if you already have some shredded chicken and homemade chicken broth in the freezer. Or you can cook some chicken and use the broth and chicken from that.
10 cups broth
2-3 cups shredded chicken, or more if you want
1 small onion, minced
4 cloves garlic, minced
1 cup chopped green bell pepper or poblano
2 large roma tomatoes, chopped
Heat the oil and fry the onions for a few minutes, then add the garlic and peppers and cook a little longer, then add the tomatoes and cook till the tomato has softened. Add salt to taste
Heat the broth, then add the chicken and the sofrito and simmer a few minutes (you can add the zest from one of the limas if you like). Add salt to taste depending on whether your broth was salted. Add the lima juice and serve.